source/blender/blenkernel/intern/object.c

   1 /* object.c
   2  *
   3  *
   4  * $Id$
   5  *
   6  * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * as published by the Free Software Foundation; either version 2
  11  * of the License, or (at your option) any later version. The Blender
  12  * Foundation also sells licenses for use in proprietary software under
  13  * the Blender License.  See http://www.blender.org/BL/ for information
  14  * about this.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software Foundation,
  23  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  24  *
  25  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
  26  * All rights reserved.
  27  *
  28  * The Original Code is: all of this file.
  29  *
  30  * Contributor(s): none yet.
  31  *
  32  * ***** END GPL/BL DUAL LICENSE BLOCK *****
  33  */
  34
  35 #include <string.h>
  36 #include <math.h>
  37 #include <stdio.h>
  38
  39 #ifdef HAVE_CONFIG_H
  40 #include <config.h>
  41 #endif
  42
  43 #include "MEM_guardedalloc.h"
  44
  45 #include "DNA_action_types.h"
  46 #include "DNA_armature_types.h"
  47 #include "DNA_camera_types.h"
  48 #include "DNA_constraint_types.h"
  49 #include "DNA_curve_types.h"
  50 #include "DNA_group_types.h"
  51 #include "DNA_ipo_types.h"
  52 #include "DNA_lamp_types.h"
  53 #include "DNA_lattice_types.h"
  54 #include "DNA_material_types.h"
  55 #include "DNA_mesh_types.h"
  56 #include "DNA_meshdata_types.h"
  57 #include "DNA_modifier_types.h"
  58 #include "DNA_nla_types.h"
  59 #include "DNA_object_types.h"
  60 #include "DNA_object_force.h"
  61 #include "DNA_object_fluidsim.h"
  62 #include "DNA_oops_types.h"
  63 #include "DNA_particle_types.h"
  64 #include "DNA_scene_types.h"
  65 #include "DNA_screen_types.h"
  66 #include "DNA_space_types.h"
  67 #include "DNA_texture_types.h"
  68 #include "DNA_userdef_types.h"
  69 #include "DNA_view3d_types.h"
  70 #include "DNA_world_types.h"
  71
  72 #include "BKE_armature.h"
  73 #include "BKE_action.h"
  74 #include "BKE_colortools.h"
  75 #include "BKE_deform.h"
  76 #include "BKE_DerivedMesh.h"
  77 #include "BKE_nla.h"
  78
  79 #include "BLI_blenlib.h"
  80 #include "BLI_arithb.h"
  81 #include "BLI_editVert.h"
  82
  83 #include "BKE_utildefines.h"
  84 #include "BKE_bad_level_calls.h"
  85
  86 #include "BKE_main.h"
  87 #include "BKE_global.h"
  88
  89 #include "BKE_anim.h"
  90 #include "BKE_blender.h"
  91 #include "BKE_constraint.h"
  92 #include "BKE_curve.h"
  93 #include "BKE_displist.h"
  94 #include "BKE_effect.h"
  95 #include "BKE_group.h"
  96 #include "BKE_icons.h"
  97 #include "BKE_ipo.h"
  98 #include "BKE_key.h"
  99 #include "BKE_lattice.h"
 100 #include "BKE_library.h"
 101 #include "BKE_mesh.h"
 102 #include "BKE_mball.h"
 103 #include "BKE_modifier.h"
 104 #include "BKE_object.h"
 105 #include "BKE_particle.h"
 106 #include "BKE_property.h"
 107 #include "BKE_sca.h"
 108 #include "BKE_scene.h"
 109 #include "BKE_screen.h"
 110 #include "BKE_softbody.h"
 111
 112 #include "LBM_fluidsim.h"
 113
 114 #include "BPY_extern.h"
 115
 116 /* Local function protos */
 117 static void solve_parenting (Object *ob, Object *par, float obmat[][4], float slowmat[][4], int simul);
 118
 119 float originmat[3][3];  /* after where_is_object(), can be used in other functions (bad!) */
 120 Object workob;
 121
 122 void clear_workob(void)
 123 {
 124         memset(&workob, 0, sizeof(Object));
 125
 126         workob.size[0]= workob.size[1]= workob.size[2]= 1.0;
 127
 128 }
 129
 130 void copy_baseflags()
 131 {
 132         Base *base= G.scene->base.first;
 133
 134         while(base) {
 135                 base->object->flag= base->flag;
 136                 base= base->next;
 137         }
 138 }
 139
 140 void copy_objectflags()
 141 {
 142         Base *base= G.scene->base.first;
 143
 144         while(base) {
 145                 base->flag= base->object->flag;
 146                 base= base->next;
 147         }
 148 }
 149
 150 void update_base_layer(Object *ob)
 151 {
 152         Base *base= G.scene->base.first;
 153
 154         while (base) {
 155                 if (base->object == ob) base->lay= ob->lay;
 156                 base= base->next;
 157         }
 158 }
 159
 160 void object_free_modifiers(Object *ob)
 161 {
 162         while (ob->modifiers.first) {
 163                 ModifierData *md = ob->modifiers.first;
 164
 165                 BLI_remlink(&ob->modifiers, md);
 166
 167                 modifier_free(md);
 168         }
 169
 170         /* particle modifiers were freed, so free the particlesystems as well */
 171         while(ob->particlesystem.first){
 172                 ParticleSystem *psys = ob->particlesystem.first;
 173
 174                 BLI_remlink(&ob->particlesystem,psys);
 175
 176                 psys_free(ob,psys);
 177         }
 178 }
 179
 180 /* here we will collect all local displist stuff */
 181 /* also (ab)used in depsgraph */
 182 void object_free_display(Object *ob)
 183 {
 184         if(ob->derivedDeform) {
 185                 ob->derivedDeform->needsFree = 1;
 186                 ob->derivedDeform->release(ob->derivedDeform);
 187                 ob->derivedDeform= NULL;
 188         }
 189         if(ob->derivedFinal) {
 190                 ob->derivedFinal->needsFree = 1;
 191                 ob->derivedFinal->release(ob->derivedFinal);
 192                 ob->derivedFinal= NULL;
 193         }
 194
 195         freedisplist(&ob->disp);
 196 }
 197
 198 /* do not free object itself */
 199 void free_object(Object *ob)
 200 {
 201         int a;
 202
 203         object_free_display(ob);
 204
 205         /* disconnect specific data */
 206         if(ob->data) {
 207                 ID *id= ob->data;
 208                 id->us--;
 209                 if(id->us==0) {
 210                         if(ob->type==OB_MESH) unlink_mesh(ob->data);
 211                         else if(ob->type==OB_CURVE) unlink_curve(ob->data);
 212                         else if(ob->type==OB_MBALL) unlink_mball(ob->data);
 213                 }
 214                 ob->data= 0;
 215         }
 216
 217         for(a=0; a<ob->totcol; a++) {
 218                 if(ob->mat[a]) ob->mat[a]->id.us--;
 219         }
 220         if(ob->mat) MEM_freeN(ob->mat);
 221         ob->mat= 0;
 222         if(ob->bb) MEM_freeN(ob->bb);
 223         ob->bb= 0;
 224         if(ob->path) free_path(ob->path);
 225         ob->path= 0;
 226         if(ob->ipo) ob->ipo->id.us--;
 227         if(ob->action) ob->action->id.us--;
 228         if(ob->poselib) ob->poselib->id.us--;
 229         if(ob->dup_group) ob->dup_group->id.us--;
 230         if(ob->defbase.first)
 231                 BLI_freelistN(&ob->defbase);
 232         if(ob->pose) {
 233                 free_pose_channels(ob->pose);
 234                 MEM_freeN(ob->pose);
 235         }
 236         free_effects(&ob->effect);
 237         free_properties(&ob->prop);
 238         object_free_modifiers(ob);
 239
 240         free_sensors(&ob->sensors);
 241         free_controllers(&ob->controllers);
 242         free_actuators(&ob->actuators);
 243
 244         free_constraints(&ob->constraints);
 245         free_constraint_channels(&ob->constraintChannels);
 246         free_nlastrips(&ob->nlastrips);
 247
 248         BPY_free_scriptlink(&ob->scriptlink);
 249
 250         if(ob->pd){
 251                 if(ob->pd->tex)
 252                         ob->pd->tex->id.us--;
 253                 MEM_freeN(ob->pd);
 254         }
 255         if(ob->soft) sbFree(ob->soft);
 256         if(ob->fluidsimSettings) fluidsimSettingsFree(ob->fluidsimSettings);
 257 }
 258
 259 static void unlink_object__unlinkModifierLinks(void *userData, Object *ob, Object **obpoin)
 260 {
 261         Object *unlinkOb = userData;
 262
 263         if (*obpoin==unlinkOb) {
 264                 *obpoin = NULL;
 265                 ob->recalc |= OB_RECALC;
 266         }
 267 }
 268 void unlink_object(Object *ob)
 269 {
 270         Object *obt;
 271         Material *mat;
 272         World *wrld;
 273         bScreen *sc;
 274         Scene *sce;
 275         Curve *cu;
 276         Tex *tex;
 277         Ipo *ipo;
 278         Group *group;
 279         Camera *camera;
 280         bConstraint *con;
 281         bActionStrip *strip;
 282         int a;
 283
 284         unlink_controllers(&ob->controllers);
 285         unlink_actuators(&ob->actuators);
 286
 287         /* check all objects: parents en bevels and fields, also from libraries */
 288         obt= G.main->object.first;
 289         while(obt) {
 290                 if(obt->proxy==ob)
 291                         obt->proxy= NULL;
 292                 if(obt->proxy_from==ob) {
 293                         obt->proxy_from= NULL;
 294                         obt->recalc |= OB_RECALC_OB;
 295                 }
 296                 if(obt->proxy_group==ob)
 297                         obt->proxy_group= NULL;
 298
 299                 if(obt->parent==ob) {
 300                         obt->parent= NULL;
 301                         obt->recalc |= OB_RECALC;
 302                 }
 303
 304                 if(obt->track==ob) {
 305                         obt->track= NULL;
 306                         obt->recalc |= OB_RECALC_OB;
 307                 }
 308
 309                 modifiers_foreachObjectLink(obt, unlink_object__unlinkModifierLinks, ob);
 310
 311                 if ELEM(obt->type, OB_CURVE, OB_FONT) {
 312                         cu= obt->data;
 313
 314                         if(cu->bevobj==ob) {
 315                                 cu->bevobj= NULL;
 316                                 obt->recalc |= OB_RECALC;
 317                         }
 318                         if(cu->taperobj==ob) {
 319                                 cu->taperobj= NULL;
 320                                 obt->recalc |= OB_RECALC;
 321                         }
 322                         if(cu->textoncurve==ob) {
 323                                 cu->textoncurve= NULL;
 324                                 obt->recalc |= OB_RECALC;
 325                         }
 326                 }
 327                 else if(obt->type==OB_ARMATURE && obt->pose) {
 328                         bPoseChannel *pchan;
 329                         for(pchan= obt->pose->chanbase.first; pchan; pchan= pchan->next) {
 330                                 for (con = pchan->constraints.first; con; con=con->next) {
 331                                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
 332                                         ListBase targets = {NULL, NULL};
 333                                         bConstraintTarget *ct;
 334
 335                                         if (cti && cti->get_constraint_targets) {
 336                                                 cti->get_constraint_targets(con, &targets);
 337
 338                                                 for (ct= targets.first; ct; ct= ct->next) {
 339                                                         if (ct->tar == ob) {
 340                                                                 ct->tar = NULL;
 341                                                                 strcpy(ct->subtarget, "");
 342                                                                 obt->recalc |= OB_RECALC_DATA;
 343                                                         }
 344                                                 }
 345
 346                                                 if (cti->flush_constraint_targets)
 347                                                         cti->flush_constraint_targets(con, &targets, 0);
 348                                         }
 349                                 }
 350                                 if(pchan->custom==ob)
 351                                         pchan->custom= NULL;
 352                         }
 353                 }
 354
 355                 sca_remove_ob_poin(obt, ob);
 356
 357                 for (con = obt->constraints.first; con; con=con->next) {
 358                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
 359                         ListBase targets = {NULL, NULL};
 360                         bConstraintTarget *ct;
 361
 362                         if (cti && cti->get_constraint_targets) {
 363                                 cti->get_constraint_targets(con, &targets);
 364
 365                                 for (ct= targets.first; ct; ct= ct->next) {
 366                                         if (ct->tar == ob) {
 367                                                 ct->tar = NULL;
 368                                                 strcpy(ct->subtarget, "");
 369                                                 obt->recalc |= OB_RECALC_DATA;
 370                                         }
 371                                 }
 372
 373                                 if (cti->flush_constraint_targets)
 374                                         cti->flush_constraint_targets(con, &targets, 0);
 375                         }
 376                 }
 377
 378                 /* object is deflector or field */
 379                 if(ob->pd) {
 380                         if(give_parteff(obt))
 381                                 obt->recalc |= OB_RECALC_DATA;
 382                         else if(obt->soft)
 383                                 obt->recalc |= OB_RECALC_DATA;
 384                 }
 385
 386                 /* strips */
 387                 for(strip= obt->nlastrips.first; strip; strip= strip->next) {
 388                         if(strip->object==ob)
 389                                 strip->object= NULL;
 390
 391                         if(strip->modifiers.first) {
 392                                 bActionModifier *amod;
 393                                 for(amod= strip->modifiers.first; amod; amod= amod->next)
 394                                         if(amod->ob==ob)
 395                                                 amod->ob= NULL;
 396                         }
 397                 }
 398
 399                 /* particle systems */
 400                 if(obt->particlesystem.first) {
 401                         ParticleSystem *tpsys= obt->particlesystem.first;
 402                         for(; tpsys; tpsys=tpsys->next) {
 403                                 if(tpsys->keyed_ob==ob) {
 404                                         ParticleSystem *psys= BLI_findlink(&ob->particlesystem,tpsys->keyed_psys-1);
 405
 406                                         if(psys && psys->keyed_ob) {
 407                                                 tpsys->keyed_ob= psys->keyed_ob;
 408                                                 tpsys->keyed_psys= psys->keyed_psys;
 409                                         }
 410                                         else
 411                                                 tpsys->keyed_ob= NULL;
 412
 413                                         obt->recalc |= OB_RECALC_DATA;
 414                                 }
 415
 416                                 if(tpsys->target_ob==ob) {
 417                                         tpsys->target_ob= NULL;
 418                                         obt->recalc |= OB_RECALC_DATA;
 419                                 }
 420
 421                                 if(tpsys->part->dup_ob==ob)
 422                                         tpsys->part->dup_ob= NULL;
 423
 424                                 if(tpsys->part->flag&PART_STICKY) {
 425                                         ParticleData *pa;
 426                                         int p;
 427
 428                                         for(p=0,pa=tpsys->particles; p<tpsys->totpart; p++,pa++) {
 429                                                 if(pa->stick_ob==ob) {
 430                                                         pa->stick_ob= 0;
 431                                                         pa->flag &= ~PARS_STICKY;
 432                                                 }
 433                                         }
 434                                 }
 435                         }
 436                         if(ob->pd)
 437                                 obt->recalc |= OB_RECALC_DATA;
 438                 }
 439
 440                 obt= obt->id.next;
 441         }
 442
 443         /* materials */
 444         mat= G.main->mat.first;
 445         while(mat) {
 446
 447                 for(a=0; a<MAX_MTEX; a++) {
 448                         if(mat->mtex[a] && ob==mat->mtex[a]->object) {
 449                                 /* actually, test for lib here... to do */
 450                                 mat->mtex[a]->object= NULL;
 451                         }
 452                 }
 453
 454                 mat= mat->id.next;
 455         }
 456
 457         /* textures */
 458         tex= G.main->tex.first;
 459         while(tex) {
 460                 if(tex->env) {
 461                         if(tex->env->object == ob) tex->env->object= NULL;
 462                 }
 463                 tex= tex->id.next;
 464         }
 465
 466         /* mballs */
 467         if(ob->type==OB_MBALL) {
 468                 obt= find_basis_mball(ob);
 469                 if(obt) freedisplist(&obt->disp);
 470         }
 471
 472         /* worlds */
 473         wrld= G.main->world.first;
 474         while(wrld) {
 475                 if(wrld->id.lib==NULL) {
 476                         for(a=0; a<MAX_MTEX; a++) {
 477                                 if(wrld->mtex[a] && ob==wrld->mtex[a]->object)
 478                                         wrld->mtex[a]->object= NULL;
 479                         }
 480                 }
 481
 482                 wrld= wrld->id.next;
 483         }
 484
 485         /* scenes */
 486         sce= G.main->scene.first;
 487         while(sce) {
 488                 if(sce->id.lib==NULL) {
 489                         if(sce->camera==ob) sce->camera= NULL;
 490                 }
 491                 sce= sce->id.next;
 492         }
 493         /* ipos */
 494         ipo= G.main->ipo.first;
 495         while(ipo) {
 496                 if(ipo->id.lib==NULL) {
 497                         IpoCurve *icu;
 498                         for(icu= ipo->curve.first; icu; icu= icu->next) {
 499                                 if(icu->driver && icu->driver->ob==ob)
 500                                         icu->driver->ob= NULL;
 501                         }
 502                 }
 503                 ipo= ipo->id.next;
 504         }
 505
 506         /* screens */
 507         sc= G.main->screen.first;
 508         while(sc) {
 509                 ScrArea *sa= sc->areabase.first;
 510                 while(sa) {
 511                         SpaceLink *sl;
 512
 513                         for (sl= sa->spacedata.first; sl; sl= sl->next) {
 514                                 if(sl->spacetype==SPACE_VIEW3D) {
 515                                         View3D *v3d= (View3D*) sl;
 516
 517                                         if(v3d->camera==ob) {
 518                                                 v3d->camera= NULL;
 519                                                 if(v3d->persp>1) v3d->persp= 1;
 520                                         }
 521                                         if(v3d->localvd && v3d->localvd->camera==ob ) {
 522                                                 v3d->localvd->camera= NULL;
 523                                                 if(v3d->localvd->persp>1) v3d->localvd->persp= 1;
 524                                         }
 525                                 }
 526                                 else if(sl->spacetype==SPACE_IPO) {
 527                                         SpaceIpo *sipo= (SpaceIpo *)sl;
 528                                         if(sipo->from == (ID *)ob) sipo->from= NULL;
 529                                 }
 530                                 else if(sl->spacetype==SPACE_OOPS) {
 531                                         SpaceOops *so= (SpaceOops *)sl;
 532                                         Oops *oops;
 533
 534                                         oops= so->oops.first;
 535                                         while(oops) {
 536                                                 if(oops->id==(ID *)ob) oops->id= NULL;
 537                                                 oops= oops->next;
 538                                         }
 539                                         if(so->treestore) {
 540                                                 TreeStoreElem *tselem= so->treestore->data;
 541                                                 int a;
 542                                                 for(a=0; a<so->treestore->usedelem; a++, tselem++) {
 543                                                         if(tselem->id==(ID *)ob) tselem->id= NULL;
 544                                                 }
 545                                         }
 546                                         so->lockpoin= NULL;
 547                                 }
 548                         }
 549
 550                         sa= sa->next;
 551                 }
 552                 sc= sc->id.next;
 553         }
 554
 555         /* groups */
 556         group= G.main->group.first;
 557         while(group) {
 558                 rem_from_group(group, ob);
 559                 group= group->id.next;
 560         }
 561
 562         /* cameras */
 563         camera= G.main->camera.first;
 564         while(camera) {
 565                 if (camera->dof_ob==ob) {
 566                         camera->dof_ob = NULL;
 567                 }
 568                 camera= camera->id.next;
 569         }
 570 }
 571
 572 int exist_object(Object *obtest)
 573 {
 574         Object *ob;
 575
 576         if(obtest==NULL) return 0;
 577
 578         ob= G.main->object.first;
 579         while(ob) {
 580                 if(ob==obtest) return 1;
 581                 ob= ob->id.next;
 582         }
 583         return 0;
 584 }
 585
 586 void *add_camera(char *name)
 587 {
 588         Camera *cam;
 589
 590         cam=  alloc_libblock(&G.main->camera, ID_CA, name);
 591
 592         cam->lens= 35.0f;
 593         cam->angle= 49.14f;
 594         cam->clipsta= 0.1f;
 595         cam->clipend= 100.0f;
 596         cam->drawsize= 0.5f;
 597         cam->ortho_scale= 6.0;
 598         cam->flag |= CAM_SHOWTITLESAFE;
 599         cam->passepartalpha = 0.2f;
 600
 601         return cam;
 602 }
 603
 604 Camera *copy_camera(Camera *cam)
 605 {
 606         Camera *camn;
 607
 608         camn= copy_libblock(cam);
 609         id_us_plus((ID *)camn->ipo);
 610
 611         BPY_copy_scriptlink(&camn->scriptlink);
 612
 613         return camn;
 614 }
 615
 616
 617
 618 void make_local_camera(Camera *cam)
 619 {
 620         Object *ob;
 621         Camera *camn;
 622         int local=0, lib=0;
 623
 624         /* - only lib users: do nothing
 625             * - only local users: set flag
 626             * - mixed: make copy
 627             */
 628
 629         if(cam->id.lib==0) return;
 630         if(cam->id.us==1) {
 631                 cam->id.lib= 0;
 632                 cam->id.flag= LIB_LOCAL;
 633                 new_id(0, (ID *)cam, 0);
 634                 return;
 635         }
 636
 637         ob= G.main->object.first;
 638         while(ob) {
 639                 if(ob->data==cam) {
 640                         if(ob->id.lib) lib= 1;
 641                         else local= 1;
 642                 }
 643                 ob= ob->id.next;
 644         }
 645
 646         if(local && lib==0) {
 647                 cam->id.lib= 0;
 648                 cam->id.flag= LIB_LOCAL;
 649                 new_id(0, (ID *)cam, 0);
 650         }
 651         else if(local && lib) {
 652                 camn= copy_camera(cam);
 653                 camn->id.us= 0;
 654
 655                 ob= G.main->object.first;
 656                 while(ob) {
 657                         if(ob->data==cam) {
 658
 659                                 if(ob->id.lib==0) {
 660                                         ob->data= camn;
 661                                         camn->id.us++;
 662                                         cam->id.us--;
 663                                 }
 664                         }
 665                         ob= ob->id.next;
 666                 }
 667         }
 668 }
 669
 670 /* get the camera's dof value, takes the dof object into account */
 671 float dof_camera(Object *ob)
 672 {
 673         Camera *cam = (Camera *)ob->data;
 674         if (ob->type != OB_CAMERA)
 675                 return 0.0;
 676         if (cam->dof_ob) {
 677                 /* too simple, better to return the distance on the view axis only
 678                  * return VecLenf(ob->obmat[3], cam->dof_ob->obmat[3]); */
 679
 680                 float mat[4][4];
 681                 Mat4Invert(ob->imat, ob->obmat);
 682                 Mat4MulMat4(mat, cam->dof_ob->obmat, ob->imat);
 683                 return fabs(mat[3][2]);
 684         }
 685         return cam->YF_dofdist;
 686 }
 687
 688 void *add_lamp(char *name)
 689 {
 690         Lamp *la;
 691
 692         la=  alloc_libblock(&G.main->lamp, ID_LA, name);
 693
 694         la->r= la->g= la->b= la->k= 1.0;
 695         la->haint= la->energy= 1.0;
 696         la->dist= 20.0;
 697         la->spotsize= 45.0;
 698         la->spotblend= 0.15;
 699         la->att2= 1.0;
 700         la->mode= LA_SHAD_BUF;
 701         la->bufsize= 512;
 702         la->clipsta= 0.5;
 703         la->clipend= 40.0;
 704         la->shadspotsize= 45.0;
 705         la->samp= 3;
 706         la->bias= 1.0;
 707         la->soft= 3.0;
 708         la->ray_samp= la->ray_sampy= la->ray_sampz= 1;
 709         la->area_size=la->area_sizey=la->area_sizez= 1.0;
 710         la->buffers= 1;
 711         la->buftype= LA_SHADBUF_HALFWAY;
 712         la->ray_samp_method = LA_SAMP_HALTON;
 713         la->adapt_thresh = 0.001;
 714         la->preview=NULL;
 715         la->falloff_type = LA_FALLOFF_INVLINEAR;
 716         la->curfalloff = curvemapping_add(1, 0.0f, 1.0f, 1.0f, 0.0f);
 717         curvemapping_initialize(la->curfalloff);
 718         return la;
 719 }
 720
 721 Lamp *copy_lamp(Lamp *la)
 722 {
 723         Lamp *lan;
 724         int a;
 725
 726         lan= copy_libblock(la);
 727
 728         for(a=0; a<MAX_MTEX; a++) {
 729                 if(lan->mtex[a]) {
 730                         lan->mtex[a]= MEM_mallocN(sizeof(MTex), "copylamptex");
 731                         memcpy(lan->mtex[a], la->mtex[a], sizeof(MTex));
 732                         id_us_plus((ID *)lan->mtex[a]->tex);
 733                 }
 734         }
 735
 736         lan->curfalloff = curvemapping_copy(la->curfalloff);
 737
 738         id_us_plus((ID *)lan->ipo);
 739
 740         if (la->preview) lan->preview = BKE_previewimg_copy(la->preview);
 741
 742         BPY_copy_scriptlink(&la->scriptlink);
 743
 744         return lan;
 745 }
 746
 747 void make_local_lamp(Lamp *la)
 748 {
 749         Object *ob;
 750         Lamp *lan;
 751         int local=0, lib=0;
 752
 753         /* - only lib users: do nothing
 754             * - only local users: set flag
 755             * - mixed: make copy
 756             */
 757
 758         if(la->id.lib==0) return;
 759         if(la->id.us==1) {
 760                 la->id.lib= 0;
 761                 la->id.flag= LIB_LOCAL;
 762                 new_id(0, (ID *)la, 0);
 763                 return;
 764         }
 765
 766         ob= G.main->object.first;
 767         while(ob) {
 768                 if(ob->data==la) {
 769                         if(ob->id.lib) lib= 1;
 770                         else local= 1;
 771                 }
 772                 ob= ob->id.next;
 773         }
 774
 775         if(local && lib==0) {
 776                 la->id.lib= 0;
 777                 la->id.flag= LIB_LOCAL;
 778                 new_id(0, (ID *)la, 0);
 779         }
 780         else if(local && lib) {
 781                 lan= copy_lamp(la);
 782                 lan->id.us= 0;
 783
 784                 ob= G.main->object.first;
 785                 while(ob) {
 786                         if(ob->data==la) {
 787
 788                                 if(ob->id.lib==0) {
 789                                         ob->data= lan;
 790                                         lan->id.us++;
 791                                         la->id.us--;
 792                                 }
 793                         }
 794                         ob= ob->id.next;
 795                 }
 796         }
 797 }
 798
 799 void free_camera(Camera *ca)
 800 {
 801         BPY_free_scriptlink(&ca->scriptlink);
 802 }
 803
 804 void free_lamp(Lamp *la)
 805 {
 806         MTex *mtex;
 807         int a;
 808
 809         /* scriptlinks */
 810
 811         BPY_free_scriptlink(&la->scriptlink);
 812
 813         for(a=0; a<MAX_MTEX; a++) {
 814                 mtex= la->mtex[a];
 815                 if(mtex && mtex->tex) mtex->tex->id.us--;
 816                 if(mtex) MEM_freeN(mtex);
 817         }
 818         la->ipo= 0;
 819
 820         curvemapping_free(la->curfalloff);
 821
 822         BKE_previewimg_free(&la->preview);
 823         BKE_icon_delete(&la->id);
 824         la->id.icon_id = 0;
 825 }
 826
 827 void *add_wave()
 828 {
 829         return 0;
 830 }
 831
 832
 833 /* *************************************************** */
 834
 835 static void *add_obdata_from_type(int type)
 836 {
 837         switch (type) {
 838         case OB_MESH: G.totmesh++; return add_mesh("Mesh");
 839         case OB_CURVE: G.totcurve++; return add_curve("Curve", OB_CURVE);
 840         case OB_SURF: G.totcurve++; return add_curve("Surf", OB_SURF);
 841         case OB_FONT: return add_curve("Text", OB_FONT);
 842         case OB_MBALL: return add_mball("Meta");
 843         case OB_CAMERA: return add_camera("Camera");
 844         case OB_LAMP: G.totlamp++; return add_lamp("Lamp");
 845         case OB_LATTICE: return add_lattice("Lattice");
 846         case OB_WAVE: return add_wave();
 847         case OB_ARMATURE: return add_armature("Armature");
 848         case OB_EMPTY: return NULL;
 849         default:
 850                 printf("add_obdata_from_type: Internal error, bad type: %d\n", type);
 851                 return NULL;
 852         }
 853 }
 854
 855 static char *get_obdata_defname(int type)
 856 {
 857         switch (type) {
 858         case OB_MESH: return "Mesh";
 859         case OB_CURVE: return "Curve";
 860         case OB_SURF: return "Surf";
 861         case OB_FONT: return "Font";
 862         case OB_MBALL: return "Mball";
 863         case OB_CAMERA: return "Camera";
 864         case OB_LAMP: return "Lamp";
 865         case OB_LATTICE: return "Lattice";
 866         case OB_WAVE: return "Wave";
 867         case OB_ARMATURE: return "Armature";
 868         case OB_EMPTY: return "Empty";
 869         default:
 870                 printf("get_obdata_defname: Internal error, bad type: %d\n", type);
 871                 return "Empty";
 872         }
 873 }
 874
 875 /* more general add: creates minimum required data, but without vertices etc. */
 876 Object *add_only_object(int type, char *name)
 877 {
 878         Object *ob;
 879
 880         ob= alloc_libblock(&G.main->object, ID_OB, name);
 881         G.totobj++;
 882
 883         /* default object vars */
 884         ob->type= type;
 885         /* ob->transflag= OB_QUAT; */
 886
 887         QuatOne(ob->quat);
 888         QuatOne(ob->dquat);
 889
 890         ob->col[0]= ob->col[1]= ob->col[2]= 0.0;
 891         ob->col[3]= 1.0;
 892
 893         ob->loc[0]= ob->loc[1]= ob->loc[2]= 0.0;
 894         ob->rot[0]= ob->rot[1]= ob->rot[2]= 0.0;
 895         ob->size[0]= ob->size[1]= ob->size[2]= 1.0;
 896
 897         Mat4One(ob->constinv);
 898         Mat4One(ob->parentinv);
 899         Mat4One(ob->obmat);
 900         ob->dt= OB_SHADED;
 901         if(U.flag & USER_MAT_ON_OB) ob->colbits= -1;
 902         ob->empty_drawtype= OB_ARROWS;
 903         ob->empty_drawsize= 1.0;
 904
 905         if(type==OB_CAMERA || type==OB_LAMP) {
 906                 ob->trackflag= OB_NEGZ;
 907                 ob->upflag= OB_POSY;
 908         }
 909         else {
 910                 ob->trackflag= OB_POSY;
 911                 ob->upflag= OB_POSZ;
 912         }
 913         ob->ipoflag = OB_OFFS_OB+OB_OFFS_PARENT;
 914         ob->ipowin= ID_OB;      /* the ipowin shown */
 915         ob->dupon= 1; ob->dupoff= 0;
 916         ob->dupsta= 1; ob->dupend= 100;
 917         ob->dupfacesca = 1.0;
 918
 919         /* Game engine defaults*/
 920         ob->mass= ob->inertia= 1.0f;
 921         ob->formfactor= 0.4f;
 922         ob->damping= 0.04f;
 923         ob->rdamping= 0.1f;
 924         ob->anisotropicFriction[0] = 1.0f;
 925         ob->anisotropicFriction[1] = 1.0f;
 926         ob->anisotropicFriction[2] = 1.0f;
 927         ob->gameflag= OB_PROP;
 928
 929         /* NT fluid sim defaults */
 930         ob->fluidsimFlag = 0;
 931         ob->fluidsimSettings = NULL;
 932
 933         return ob;
 934 }
 935
 936 /* general add: to G.scene, with layer from area and default name */
 937 /* creates minimum required data, but without vertices etc. */
 938 Object *add_object(int type)
 939 {
 940         Object *ob;
 941         Base *base;
 942         char name[32];
 943
 944         strcpy(name, get_obdata_defname(type));
 945         ob = add_only_object(type, name);
 946
 947         ob->data= add_obdata_from_type(type);
 948
 949         ob->lay= G.scene->lay;
 950
 951         base= scene_add_base(G.scene, ob);
 952         scene_select_base(G.scene, base);
 953         ob->recalc |= OB_RECALC;
 954
 955         return ob;
 956 }
 957
 958 void base_init_from_view3d(Base *base, View3D *v3d)
 959 {
 960         Object *ob= base->object;
 961
 962         if (!v3d) {
 963                 /* no 3d view, this wont happen often */
 964                 base->lay = 1;
 965                 VECCOPY(ob->loc, G.scene->cursor);
 966
 967                 /* return now because v3d->viewquat isnt available */
 968                 return;
 969         } else if (v3d->localview) {
 970                 base->lay= ob->lay= v3d->layact + v3d->lay;
 971                 VECCOPY(ob->loc, v3d->cursor);
 972         } else {
 973                 base->lay= ob->lay= v3d->layact;
 974                 VECCOPY(ob->loc, G.scene->cursor);
 975         }
 976
 977         if (U.flag & USER_ADD_VIEWALIGNED) {
 978                 v3d->viewquat[0]= -v3d->viewquat[0];
 979                 if (ob->transflag & OB_QUAT) {
 980                         QUATCOPY(ob->quat, v3d->viewquat);
 981                 } else {
 982                         QuatToEul(v3d->viewquat, ob->rot);
 983                 }
 984                 v3d->viewquat[0]= -v3d->viewquat[0];
 985         }
 986 }
 987
 988 SoftBody *copy_softbody(SoftBody *sb)
 989 {
 990         SoftBody *sbn;
 991
 992         if (sb==NULL) return(NULL);
 993
 994         sbn= MEM_dupallocN(sb);
 995         sbn->totspring= sbn->totpoint= 0;
 996         sbn->bpoint= NULL;
 997         sbn->bspring= NULL;
 998         sbn->ctime= 0.0f;
 999
1000         sbn->keys= NULL;
1001         sbn->totkey= sbn->totpointkey= 0;
1002
1003         sbn->scratch= NULL;
1004         return sbn;
1005 }
1006
1007 ParticleSystem *copy_particlesystem(ParticleSystem *psys)
1008 {
1009         ParticleSystem *psysn;
1010         ParticleData *pa;
1011         int a;
1012
1013         psysn= MEM_dupallocN(psys);
1014         psysn->particles= MEM_dupallocN(psys->particles);
1015         psysn->child= MEM_dupallocN(psys->child);
1016
1017         for(a=0, pa=psysn->particles; a<psysn->totpart; a++, pa++) {
1018                 if(pa->hair)
1019                         pa->hair= MEM_dupallocN(pa->hair);
1020                 if(pa->keys)
1021                         pa->keys= MEM_dupallocN(pa->keys);
1022         }
1023
1024         if(psys->soft)
1025                 psysn->soft= copy_softbody(psys->soft);
1026
1027         psysn->pathcache= NULL;
1028         psysn->childcache= NULL;
1029         psysn->edit= NULL;
1030         psysn->effectors.first= psysn->effectors.last= 0;
1031
1032         id_us_plus((ID *)psysn->part);
1033
1034         return psysn;
1035 }
1036
1037 static void copy_object_pose(Object *obn, Object *ob)
1038 {
1039         bPoseChannel *chan;
1040
1041         copy_pose(&obn->pose, ob->pose, 1);     /* 1 = copy constraints */
1042
1043         for (chan = obn->pose->chanbase.first; chan; chan=chan->next){
1044                 bConstraint *con;
1045
1046                 chan->flag &= ~(POSE_LOC|POSE_ROT|POSE_SIZE);
1047
1048                 for (con= chan->constraints.first; con; con= con->next) {
1049                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
1050                         ListBase targets = {NULL, NULL};
1051                         bConstraintTarget *ct;
1052
1053                         if(con->ipo) {
1054                                 IpoCurve *icu;
1055                                 for(icu= con->ipo->curve.first; icu; icu= icu->next) {
1056                                         if(icu->driver && icu->driver->ob==ob)
1057                                                 icu->driver->ob= obn;
1058                                 }
1059                         }
1060
1061                         if (cti && cti->get_constraint_targets) {
1062                                 cti->get_constraint_targets(con, &targets);
1063
1064                                 for (ct= targets.first; ct; ct= ct->next) {
1065                                         if (ct->tar == ob)
1066                                                 ct->tar = obn;
1067                                 }
1068
1069                                 if (cti->flush_constraint_targets)
1070                                         cti->flush_constraint_targets(con, &targets, 0);
1071                         }
1072                 }
1073         }
1074 }
1075
1076 Object *copy_object(Object *ob)
1077 {
1078         Object *obn;
1079         ModifierData *md;
1080         ParticleSystem *psys;
1081         int a;
1082
1083         obn= copy_libblock(ob);
1084
1085         if(ob->totcol) {
1086                 obn->mat= MEM_dupallocN(ob->mat);
1087         }
1088
1089         if(ob->bb) obn->bb= MEM_dupallocN(ob->bb);
1090         obn->path= NULL;
1091         obn->flag &= ~OB_FROMGROUP;
1092
1093         copy_effects(&obn->effect, &ob->effect);
1094         obn->modifiers.first = obn->modifiers.last= NULL;
1095
1096         for (md=ob->modifiers.first; md; md=md->next) {
1097                 ModifierData *nmd = modifier_new(md->type);
1098                 modifier_copyData(md, nmd);
1099                 BLI_addtail(&obn->modifiers, nmd);
1100         }
1101
1102         BPY_copy_scriptlink(&ob->scriptlink);
1103
1104         copy_properties(&obn->prop, &ob->prop);
1105         copy_sensors(&obn->sensors, &ob->sensors);
1106         copy_controllers(&obn->controllers, &ob->controllers);
1107         copy_actuators(&obn->actuators, &ob->actuators);
1108
1109         if(ob->pose) {
1110                 copy_object_pose(obn, ob);
1111                 /* backwards compat... non-armatures can get poses in older files? */
1112                 if(ob->type==OB_ARMATURE)
1113                         armature_rebuild_pose(obn, obn->data);
1114         }
1115         copy_defgroups(&obn->defbase, &ob->defbase);
1116         copy_nlastrips(&obn->nlastrips, &ob->nlastrips);
1117         copy_constraints (&obn->constraints, &ob->constraints);
1118
1119         clone_constraint_channels (&obn->constraintChannels, &ob->constraintChannels);
1120
1121         /* increase user numbers */
1122         id_us_plus((ID *)obn->data);
1123         id_us_plus((ID *)obn->ipo);
1124         id_us_plus((ID *)obn->action);
1125         id_us_plus((ID *)obn->dup_group);
1126
1127         for(a=0; a<obn->totcol; a++) id_us_plus((ID *)obn->mat[a]);
1128
1129         obn->disp.first= obn->disp.last= NULL;
1130
1131         if(ob->pd){
1132                 obn->pd= MEM_dupallocN(ob->pd);
1133                 if(obn->pd->tex)
1134                         id_us_plus(&(obn->pd->tex->id));
1135         }
1136         obn->soft= copy_softbody(ob->soft);
1137
1138         /* NT copy fluid sim setting memory */
1139         if(obn->fluidsimSettings) {
1140                 obn->fluidsimSettings = fluidsimSettingsCopy(ob->fluidsimSettings);
1141                 /* copying might fail... */
1142                 if(obn->fluidsimSettings) {
1143                         obn->fluidsimSettings->orgMesh = (Mesh *)obn->data;
1144                 }
1145         }
1146
1147         obn->particlesystem.first= obn->particlesystem.last= NULL;
1148         for(psys=ob->particlesystem.first; psys; psys=psys->next) {
1149                 ParticleSystemModifierData *psmd;
1150                 ParticleSystem *npsys= copy_particlesystem(psys);
1151
1152                 BLI_addtail(&obn->particlesystem, npsys);
1153
1154                 /* need to update particle modifiers too */
1155                 for(md=obn->modifiers.first; md; md=md->next) {
1156                         if(md->type==eModifierType_ParticleSystem) {
1157                                 psmd= (ParticleSystemModifierData*)md;
1158                                 if(psmd->psys==psys)
1159                                         psmd->psys= npsys;
1160                         }
1161                 }
1162         }
1163
1164         obn->derivedDeform = NULL;
1165         obn->derivedFinal = NULL;
1166
1167 #ifdef WITH_VERSE
1168         obn->vnode = NULL;
1169 #endif
1170
1171
1172         return obn;
1173 }
1174
1175 void expand_local_object(Object *ob)
1176 {
1177         bActionStrip *strip;
1178         int a;
1179
1180         id_lib_extern((ID *)ob->action);
1181         id_lib_extern((ID *)ob->ipo);
1182         id_lib_extern((ID *)ob->data);
1183
1184         for(a=0; a<ob->totcol; a++) {
1185                 id_lib_extern((ID *)ob->mat[a]);
1186         }
1187         for (strip=ob->nlastrips.first; strip; strip=strip->next) {
1188                 id_lib_extern((ID *)strip->act);
1189         }
1190
1191 }
1192
1193 void make_local_object(Object *ob)
1194 {
1195         Object *obn;
1196         Scene *sce;
1197         Base *base;
1198         int local=0, lib=0;
1199
1200         /* - only lib users: do nothing
1201             * - only local users: set flag
1202             * - mixed: make copy
1203             */
1204
1205         if(ob->id.lib==NULL) return;
1206
1207         ob->proxy= ob->proxy_from= NULL;
1208
1209         if(ob->id.us==1) {
1210                 ob->id.lib= NULL;
1211                 ob->id.flag= LIB_LOCAL;
1212                 new_id(0, (ID *)ob, 0);
1213
1214         }
1215         else {
1216                 sce= G.main->scene.first;
1217                 while(sce) {
1218                         base= sce->base.first;
1219                         while(base) {
1220                                 if(base->object==ob) {
1221                                         if(sce->id.lib) lib++;
1222                                         else local++;
1223                                         break;
1224                                 }
1225                                 base= base->next;
1226                         }
1227                         sce= sce->id.next;
1228                 }
1229
1230                 if(local && lib==0) {
1231                         ob->id.lib= 0;
1232                         ob->id.flag= LIB_LOCAL;
1233                         new_id(0, (ID *)ob, 0);
1234                 }
1235                 else if(local && lib) {
1236                         obn= copy_object(ob);
1237                         obn->id.us= 0;
1238
1239                         sce= G.main->scene.first;
1240                         while(sce) {
1241                                 if(sce->id.lib==0) {
1242                                         base= sce->base.first;
1243                                         while(base) {
1244                                                 if(base->object==ob) {
1245                                                         base->object= obn;
1246                                                         obn->id.us++;
1247                                                         ob->id.us--;
1248                                                 }
1249                                                 base= base->next;
1250                                         }
1251                                 }
1252                                 sce= sce->id.next;
1253                         }
1254                 }
1255         }
1256
1257         expand_local_object(ob);
1258 }
1259
1260 /* *************** PROXY **************** */
1261
1262 /* when you make proxy, ensure the exposed layers are extern */
1263 void armature_set_id_extern(Object *ob)
1264 {
1265         bArmature *arm= ob->data;
1266         bPoseChannel *pchan;
1267         int lay= arm->layer_protected;
1268
1269         for (pchan = ob->pose->chanbase.first; pchan; pchan=pchan->next) {
1270                 if(!(pchan->bone->layer & lay))
1271                         id_lib_extern((ID *)pchan->custom);
1272         }
1273
1274 }
1275
1276 /* proxy rule: lib_object->proxy_from == the one we borrow from, set temporally while object_update */
1277 /*             local_object->proxy == pointer to library object, saved in files and read */
1278 /*             local_object->proxy_group == pointer to group dupli-object, saved in files and read */
1279
1280 void object_make_proxy(Object *ob, Object *target, Object *gob)
1281 {
1282         /* paranoia checks */
1283         if(ob->id.lib || target->id.lib==NULL) {
1284                 printf("cannot make proxy\n");
1285                 return;
1286         }
1287
1288         ob->proxy= target;
1289         ob->proxy_group= gob;
1290         id_lib_extern(&target->id);
1291
1292         ob->recalc= target->recalc= OB_RECALC;
1293
1294         /* copy transform */
1295         if(gob) {
1296                 VECCOPY(ob->loc, gob->loc);
1297                 VECCOPY(ob->rot, gob->rot);
1298                 VECCOPY(ob->size, gob->size);
1299
1300                 group_tag_recalc(gob->dup_group);
1301         }
1302         else {
1303                 VECCOPY(ob->loc, target->loc);
1304                 VECCOPY(ob->rot, target->rot);
1305                 VECCOPY(ob->size, target->size);
1306         }
1307
1308         ob->parent= target->parent;     /* libdata */
1309         Mat4CpyMat4(ob->parentinv, target->parentinv);
1310         ob->ipo= target->ipo;           /* libdata */
1311
1312         /* skip constraints, constraintchannels, nla? */
1313
1314
1315         ob->type= target->type;
1316         ob->data= target->data;
1317         id_us_plus((ID *)ob->data);             /* ensures lib data becomes LIB_EXTERN */
1318
1319         /* type conversions */
1320         if(target->type == OB_ARMATURE) {
1321                 copy_object_pose(ob, target);   /* data copy, object pointers in constraints */
1322                 rest_pose(ob->pose);                    /* clear all transforms in channels */
1323                 armature_rebuild_pose(ob, ob->data);    /* set all internal links */
1324
1325                 armature_set_id_extern(ob);
1326         }
1327 }
1328
1329
1330 /* *************** CALC ****************** */
1331
1332 /* there is also a timing calculation in drawobject() */
1333
1334 float bluroffs= 0.0f, fieldoffs= 0.0f;
1335 int no_speed_curve= 0;
1336
1337 /* ugly calls from render */
1338 void set_mblur_offs(float blur)
1339 {
1340         bluroffs= blur;
1341 }
1342
1343 void set_field_offs(float field)
1344 {
1345         fieldoffs= field;
1346 }
1347
1348 void disable_speed_curve(int val)
1349 {
1350         no_speed_curve= val;
1351 }
1352
1353 /* ob can be NULL */
1354 float bsystem_time(Object *ob, float cfra, float ofs)
1355 {
1356         /* returns float ( see frame_to_float in ipo.c) */
1357
1358         /* bluroffs and fieldoffs are ugly globals that are set by render */
1359         cfra+= bluroffs+fieldoffs;
1360
1361         /* global time */
1362         cfra*= G.scene->r.framelen;
1363
1364         if (ob) {
1365                 if (no_speed_curve==0 && ob->ipo)
1366                         cfra= calc_ipo_time(ob->ipo, cfra);
1367
1368                 /* ofset frames */
1369                 if ((ob->ipoflag & OB_OFFS_PARENT) && (ob->partype & PARSLOW)==0)
1370                         cfra-= ob->sf;
1371         }
1372
1373         cfra-= ofs;
1374
1375         return cfra;
1376 }
1377
1378 void object_to_mat3(Object *ob, float mat[][3]) /* no parent */
1379 {
1380         float smat[3][3], vec[3];
1381         float rmat[3][3];
1382         float q1[4];
1383
1384         /* size */
1385         if(ob->ipo) {
1386                 vec[0]= ob->size[0]+ob->dsize[0];
1387                 vec[1]= ob->size[1]+ob->dsize[1];
1388                 vec[2]= ob->size[2]+ob->dsize[2];
1389                 SizeToMat3(vec, smat);
1390         }
1391         else {
1392                 SizeToMat3(ob->size, smat);
1393         }
1394
1395         /* rot */
1396         if(ob->transflag & OB_QUAT) {
1397                 if(ob->ipo) {
1398                         QuatMul(q1, ob->quat, ob->dquat);
1399                         QuatToMat3(q1, rmat);
1400                 }
1401                 else {
1402                         QuatToMat3(ob->quat, rmat);
1403                 }
1404         }
1405         else {
1406                 if(ob->ipo) {
1407                         vec[0]= ob->rot[0]+ob->drot[0];
1408                         vec[1]= ob->rot[1]+ob->drot[1];
1409                         vec[2]= ob->rot[2]+ob->drot[2];
1410                         EulToMat3(vec, rmat);
1411                 }
1412                 else {
1413                         EulToMat3(ob->rot, rmat);
1414                 }
1415         }
1416         Mat3MulMat3(mat, rmat, smat);
1417 }
1418
1419 void object_to_mat4(Object *ob, float mat[][4])
1420 {
1421         float tmat[3][3];
1422
1423         object_to_mat3(ob, tmat);
1424
1425         Mat4CpyMat3(mat, tmat);
1426
1427         VECCOPY(mat[3], ob->loc);
1428         if(ob->ipo) {
1429                 mat[3][0]+= ob->dloc[0];
1430                 mat[3][1]+= ob->dloc[1];
1431                 mat[3][2]+= ob->dloc[2];
1432         }
1433 }
1434
1435 int enable_cu_speed= 1;
1436
1437 static void ob_parcurve(Object *ob, Object *par, float mat[][4])
1438 {
1439         Curve *cu;
1440         float q[4], vec[4], dir[3], *quat, x1, ctime;
1441         float timeoffs= 0.0;
1442
1443         Mat4One(mat);
1444
1445         cu= par->data;
1446         if(cu->path==NULL || cu->path->data==NULL) /* only happens on reload file, but violates depsgraph still... fix! */
1447                 makeDispListCurveTypes(par, 0);
1448         if(cu->path==NULL) return;
1449
1450         /* exception, timeoffset is regarded as distance offset */
1451         if(cu->flag & CU_OFFS_PATHDIST) {
1452                 SWAP(float, timeoffs, ob->sf);
1453         }
1454
1455         /* catch exceptions: feature for nla stride editing */
1456         if(ob->ipoflag & OB_DISABLE_PATH) {
1457                 ctime= 0.0f;
1458         }
1459         /* catch exceptions: curve paths used as a duplicator */
1460         else if(enable_cu_speed) {
1461                 ctime= bsystem_time(ob, (float)G.scene->r.cfra, 0.0);
1462
1463                 if(calc_ipo_spec(cu->ipo, CU_SPEED, &ctime)==0) {
1464                         ctime /= cu->pathlen;
1465                         CLAMP(ctime, 0.0, 1.0);
1466                 }
1467         }
1468         else {
1469                 ctime= G.scene->r.cfra - ob->sf;
1470                 ctime /= cu->pathlen;
1471
1472                 CLAMP(ctime, 0.0, 1.0);
1473         }
1474
1475         /* time calculus is correct, now apply distance offset */
1476         if(cu->flag & CU_OFFS_PATHDIST) {
1477                 ctime += timeoffs/cu->path->totdist;
1478
1479                 /* restore */
1480                 SWAP(float, timeoffs, ob->sf);
1481         }
1482
1483
1484         /* vec: 4 items! */
1485         if( where_on_path(par, ctime, vec, dir) ) {
1486
1487                 if(cu->flag & CU_FOLLOW) {
1488                         quat= vectoquat(dir, ob->trackflag, ob->upflag);
1489
1490                         /* the tilt */
1491                         Normalize(dir);
1492                         q[0]= (float)cos(0.5*vec[3]);
1493                         x1= (float)sin(0.5*vec[3]);
1494                         q[1]= -x1*dir[0];
1495                         q[2]= -x1*dir[1];
1496                         q[3]= -x1*dir[2];
1497                         QuatMul(quat, q, quat);
1498
1499                         QuatToMat4(quat, mat);
1500                 }
1501
1502                 VECCOPY(mat[3], vec);
1503
1504         }
1505 }
1506
1507 static void ob_parbone(Object *ob, Object *par, float mat[][4])
1508 {
1509         bPoseChannel *pchan;
1510         bArmature *arm;
1511         float vec[3];
1512
1513         arm=get_armature(par);
1514         if (!arm) {
1515                 Mat4One(mat);
1516                 return;
1517         }
1518
1519         /* Make sure the bone is still valid */
1520         pchan= get_pose_channel(par->pose, ob->parsubstr);
1521         if (!pchan){
1522                 printf ("Object %s with Bone parent: bone %s doesn't exist\n", ob->id.name+2, ob->parsubstr);
1523                 Mat4One(mat);
1524                 return;
1525         }
1526
1527         /* get bone transform */
1528         Mat4CpyMat4(mat, pchan->pose_mat);
1529
1530         /* but for backwards compatibility, the child has to move to the tail */
1531         VECCOPY(vec, mat[1]);
1532         VecMulf(vec, pchan->bone->length);
1533         VecAddf(mat[3], mat[3], vec);
1534 }
1535
1536 static void give_parvert(Object *par, int nr, float *vec)
1537 {
1538         int a, count;
1539
1540         vec[0]=vec[1]=vec[2]= 0.0f;
1541
1542         if(par->type==OB_MESH) {
1543                 if(G.obedit && (par->data==G.obedit->data)) {
1544                         EditMesh *em = G.editMesh;
1545                         EditVert *eve;
1546
1547                         for(eve= em->verts.first; eve; eve= eve->next) {
1548                                 if(eve->keyindex==nr) {
1549                                         memcpy(vec, eve->co, 12);
1550                                         break;
1551                                 }
1552                         }
1553                 }
1554                 else {
1555                         DerivedMesh *dm = par->derivedFinal;
1556
1557                         if(dm) {
1558                                 int i, count = 0, numVerts = dm->getNumVerts(dm);
1559                                 int *index = (int *)dm->getVertDataArray(dm, CD_ORIGINDEX);
1560                                 float co[3];
1561
1562                                 /* get the average of all verts with (original index == nr) */
1563                                 for(i = 0; i < numVerts; ++i, ++index) {
1564                                         if(*index == nr) {
1565                                                 dm->getVertCo(dm, i, co);
1566                                                 VecAddf(vec, vec, co);
1567                                                 count++;
1568                                         }
1569                                 }
1570
1571                                 if(count > 0) {
1572                                         VecMulf(vec, 1.0f / count);
1573                                 } else {
1574                                         dm->getVertCo(dm, 0, vec);
1575                                 }
1576                         }
1577                 }
1578         }
1579         else if ELEM(par->type, OB_CURVE, OB_SURF) {
1580                 Nurb *nu;
1581                 Curve *cu;
1582                 BPoint *bp;
1583                 BezTriple *bezt;
1584
1585                 cu= par->data;
1586                 nu= cu->nurb.first;
1587                 if(par==G.obedit) nu= editNurb.first;
1588
1589                 count= 0;
1590                 while(nu) {
1591                         if((nu->type & 7)==CU_BEZIER) {
1592                                 bezt= nu->bezt;
1593                                 a= nu->pntsu;
1594                                 while(a--) {
1595                                         if(count==nr) {
1596                                                 VECCOPY(vec, bezt->vec[1]);
1597                                                 break;
1598                                         }
1599                                         count++;
1600                                         bezt++;
1601                                 }
1602                         }
1603                         else {
1604                                 bp= nu->bp;
1605                                 a= nu->pntsu*nu->pntsv;
1606                                 while(a--) {
1607                                         if(count==nr) {
1608                                                 memcpy(vec, bp->vec, 12);
1609                                                 break;
1610                                         }
1611                                         count++;
1612                                         bp++;
1613                                 }
1614                         }
1615                         nu= nu->next;
1616                 }
1617
1618         }
1619         else if(par->type==OB_LATTICE) {
1620                 Lattice *latt= par->data;
1621                 BPoint *bp;
1622                 DispList *dl = find_displist(&par->disp, DL_VERTS);
1623                 float *co = dl?dl->verts:NULL;
1624
1625                 if(par==G.obedit) latt= editLatt;
1626
1627                 a= latt->pntsu*latt->pntsv*latt->pntsw;
1628                 count= 0;
1629                 bp= latt->def;
1630                 while(a--) {
1631                         if(count==nr) {
1632                                 if(co)
1633                                         memcpy(vec, co, 3*sizeof(float));
1634                                 else
1635                                         memcpy(vec, bp->vec, 3*sizeof(float));
1636                                 break;
1637                         }
1638                         count++;
1639                         if(co) co+= 3;
1640                         else bp++;
1641                 }
1642         }
1643 }
1644
1645 static void ob_parvert3(Object *ob, Object *par, float mat[][4])
1646 {
1647         float cmat[3][3], v1[3], v2[3], v3[3], q[4];
1648
1649         /* in local ob space */
1650         Mat4One(mat);
1651
1652         if ELEM4(par->type, OB_MESH, OB_SURF, OB_CURVE, OB_LATTICE) {
1653
1654                 give_parvert(par, ob->par1, v1);
1655                 give_parvert(par, ob->par2, v2);
1656                 give_parvert(par, ob->par3, v3);
1657
1658                 triatoquat(v1, v2, v3, q);
1659                 QuatToMat3(q, cmat);
1660                 Mat4CpyMat3(mat, cmat);
1661
1662                 if(ob->type==OB_CURVE) {
1663                         VECCOPY(mat[3], v1);
1664                 }
1665                 else {
1666                         VecAddf(mat[3], v1, v2);
1667                         VecAddf(mat[3], mat[3], v3);
1668                         VecMulf(mat[3], 0.3333333f);
1669                 }
1670         }
1671 }
1672
1673 static int no_parent_ipo=0;
1674 void set_no_parent_ipo(int val)
1675 {
1676         no_parent_ipo= val;
1677 }
1678
1679 static int during_script_flag=0;
1680 void disable_where_script(short on)
1681 {
1682         during_script_flag= on;
1683 }
1684
1685 int during_script(void) {
1686         return during_script_flag;
1687 }
1688
1689 static int during_scriptlink_flag=0;
1690 void disable_where_scriptlink(short on)
1691 {
1692         during_scriptlink_flag= on;
1693 }
1694
1695 int during_scriptlink(void) {
1696         return during_scriptlink_flag;
1697 }
1698
1699 void where_is_object_time(Object *ob, float ctime)
1700 {
1701         float *fp1, *fp2, slowmat[4][4] = MAT4_UNITY;
1702         float stime, fac1, fac2, vec[3];
1703         int a;
1704         int pop;
1705
1706         /* new version: correct parent+vertexparent and track+parent */
1707         /* this one only calculates direct attached parent and track */
1708         /* is faster, but should keep track of timeoffs */
1709
1710         if(ob==NULL) return;
1711
1712         /* this is needed to be able to grab objects with ipos, otherwise it always freezes them */
1713         stime= bsystem_time(ob, ctime, 0.0);
1714         if(stime != ob->ctime) {
1715
1716                 ob->ctime= stime;
1717
1718                 if(ob->ipo) {
1719                         calc_ipo(ob->ipo, stime);
1720                         execute_ipo((ID *)ob, ob->ipo);
1721                 }
1722                 else
1723                         do_all_object_actions(ob);
1724
1725                 /* do constraint ipos ..., note it needs stime (0 = all ipos) */
1726                 do_constraint_channels(&ob->constraints, &ob->constraintChannels, stime, 0);
1727         }
1728         else {
1729                 /* but, the drivers have to be done */
1730                 if(ob->ipo) do_ob_ipodrivers(ob, ob->ipo, stime);
1731                 /* do constraint ipos ..., note it needs stime (1 = only drivers ipos) */
1732                 do_constraint_channels(&ob->constraints, &ob->constraintChannels, stime, 1);
1733         }
1734
1735         if(ob->parent) {
1736                 Object *par= ob->parent;
1737
1738                 if(ob->ipoflag & OB_OFFS_PARENT) ctime-= ob->sf;
1739
1740                 /* hurms, code below conflicts with depgraph... (ton) */
1741                 /* and even worse, it gives bad effects for NLA stride too (try ctime != par->ctime, with MBlur) */
1742                 pop= 0;
1743                 if(no_parent_ipo==0 && stime != par->ctime) {
1744
1745                         // only for ipo systems?
1746                         pushdata(par, sizeof(Object));
1747                         pop= 1;
1748
1749                         if(par->proxy_from);    // was a copied matrix, no where_is! bad...
1750                         else where_is_object_time(par, ctime);
1751                 }
1752
1753                 solve_parenting(ob, par, ob->obmat, slowmat, 0);
1754
1755                 if(pop) {
1756                         poplast(par);
1757                 }
1758
1759                 if(ob->partype & PARSLOW) {
1760                         // include framerate
1761
1762                         fac1= (1.0f/(1.0f+ fabs(ob->sf)));
1763                         if(fac1>=1.0) return;
1764                         fac2= 1.0f-fac1;
1765
1766                         fp1= ob->obmat[0];
1767                         fp2= slowmat[0];
1768                         for(a=0; a<16; a++, fp1++, fp2++) {
1769                                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
1770                         }
1771                 }
1772
1773         }
1774         else {
1775                 object_to_mat4(ob, ob->obmat);
1776         }
1777
1778         /* Handle tracking */
1779         if(ob->track) {
1780                 if( ctime != ob->track->ctime) where_is_object_time(ob->track, ctime);
1781                 solve_tracking (ob, ob->track->obmat);
1782
1783         }
1784
1785         /* solve constraints */
1786         if (ob->constraints.first) {
1787                 bConstraintOb *cob;
1788
1789                 cob= constraints_make_evalob(ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
1790
1791                 /* constraints need ctime, not stime. Some call where_is_object_time and bsystem_time */
1792                 solve_constraints (&ob->constraints, cob, ctime);
1793
1794                 constraints_clear_evalob(cob);
1795         }
1796
1797         if(ob->scriptlink.totscript && !during_script()) {
1798                 if (G.f & G_DOSCRIPTLINKS) BPY_do_pyscript((ID *)ob, SCRIPT_REDRAW);
1799         }
1800
1801         /* set negative scale flag in object */
1802         Crossf(vec, ob->obmat[0], ob->obmat[1]);
1803         if( Inpf(vec, ob->obmat[2]) < 0.0 ) ob->transflag |= OB_NEG_SCALE;
1804         else ob->transflag &= ~OB_NEG_SCALE;
1805 }
1806
1807 static void solve_parenting (Object *ob, Object *par, float obmat[][4], float slowmat[][4], int simul)
1808 {
1809         float totmat[4][4];
1810         float tmat[4][4];
1811         float locmat[4][4];
1812         float vec[3];
1813         int ok;
1814
1815         object_to_mat4(ob, locmat);
1816
1817         if(ob->partype & PARSLOW) Mat4CpyMat4(slowmat, obmat);
1818
1819
1820         switch(ob->partype & PARTYPE) {
1821         case PAROBJECT:
1822                 ok= 0;
1823                 if(par->type==OB_CURVE) {
1824                         if( ((Curve *)par->data)->flag & CU_PATH ) {
1825                                 ob_parcurve(ob, par, tmat);
1826                                 ok= 1;
1827                         }
1828                 }
1829
1830                 if(ok) Mat4MulSerie(totmat, par->obmat, tmat,
1831                         NULL, NULL, NULL, NULL, NULL, NULL);
1832                 else Mat4CpyMat4(totmat, par->obmat);
1833
1834                 break;
1835         case PARBONE:
1836                 ob_parbone(ob, par, tmat);
1837                 Mat4MulSerie(totmat, par->obmat, tmat,
1838                         NULL, NULL, NULL, NULL, NULL, NULL);
1839                 break;
1840
1841         case PARVERT1:
1842                 Mat4One(totmat);
1843                 if (simul){
1844                         VECCOPY(totmat[3], par->obmat[3]);
1845                 }
1846                 else{
1847                         give_parvert(par, ob->par1, vec);
1848                         VecMat4MulVecfl(totmat[3], par->obmat, vec);
1849                 }
1850                 break;
1851         case PARVERT3:
1852                 ob_parvert3(ob, par, tmat);
1853
1854                 Mat4MulSerie(totmat, par->obmat, tmat,
1855                         NULL, NULL, NULL, NULL, NULL, NULL);
1856                 break;
1857
1858         case PARSKEL:
1859                 Mat4CpyMat4(totmat, par->obmat);
1860                 break;
1861         }
1862
1863         // total
1864         Mat4MulSerie(tmat, totmat, ob->parentinv,
1865                 NULL, NULL, NULL, NULL, NULL, NULL);
1866         Mat4MulSerie(obmat, tmat, locmat,
1867                 NULL, NULL, NULL, NULL, NULL, NULL);
1868
1869         if (simul) {
1870
1871         }
1872         else{
1873                 // external usable originmat
1874                 Mat3CpyMat4(originmat, tmat);
1875
1876                 // origin, voor help line
1877                 if( (ob->partype & 15)==PARSKEL ) {
1878                         VECCOPY(ob->orig, par->obmat[3]);
1879                 }
1880                 else {
1881                         VECCOPY(ob->orig, totmat[3]);
1882                 }
1883         }
1884
1885 }
1886 void solve_tracking (Object *ob, float targetmat[][4])
1887 {
1888         float *quat;
1889         float vec[3];
1890         float totmat[3][3];
1891         float tmat[4][4];
1892
1893         VecSubf(vec, ob->obmat[3], targetmat[3]);
1894         quat= vectoquat(vec, ob->trackflag, ob->upflag);
1895         QuatToMat3(quat, totmat);
1896
1897         if(ob->parent && (ob->transflag & OB_POWERTRACK)) {
1898                 /* 'temporal' : clear parent info */
1899                 object_to_mat4(ob, tmat);
1900                 tmat[0][3]= ob->obmat[0][3];
1901                 tmat[1][3]= ob->obmat[1][3];
1902                 tmat[2][3]= ob->obmat[2][3];
1903                 tmat[3][0]= ob->obmat[3][0];
1904                 tmat[3][1]= ob->obmat[3][1];
1905                 tmat[3][2]= ob->obmat[3][2];
1906                 tmat[3][3]= ob->obmat[3][3];
1907         }
1908         else Mat4CpyMat4(tmat, ob->obmat);
1909
1910         Mat4MulMat34(ob->obmat, totmat, tmat);
1911
1912 }
1913
1914 void where_is_object(Object *ob)
1915 {
1916         where_is_object_time(ob, (float)G.scene->r.cfra);
1917 }
1918
1919
1920 void where_is_object_simul(Object *ob)
1921 /* was written for the old game engine (until 2.04) */
1922 /* It seems that this function is only called
1923 for a lamp that is the child of another object */
1924 {
1925         Object *par;
1926         Ipo *ipo;
1927         float *fp1, *fp2;
1928         float slowmat[4][4];
1929         float fac1, fac2;
1930         int a;
1931
1932         /* NO TIMEOFFS */
1933
1934         /* no ipo! (because of dloc and realtime-ipos) */
1935         ipo= ob->ipo;
1936         ob->ipo= NULL;
1937
1938         if(ob->parent) {
1939                 par= ob->parent;
1940
1941                 solve_parenting(ob, par, ob->obmat, slowmat, 1);
1942
1943                 if(ob->partype & PARSLOW) {
1944
1945                         fac1= (float)(1.0/(1.0+ fabs(ob->sf)));
1946                         fac2= 1.0f-fac1;
1947                         fp1= ob->obmat[0];
1948                         fp2= slowmat[0];
1949                         for(a=0; a<16; a++, fp1++, fp2++) {
1950                                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
1951                         }
1952                 }
1953
1954         }
1955         else {
1956                 object_to_mat4(ob, ob->obmat);
1957         }
1958
1959         if(ob->track)
1960                 solve_tracking(ob, ob->track->obmat);
1961
1962         /* solve constraints */
1963         if (ob->constraints.first) {
1964                 bConstraintOb *cob;
1965
1966                 cob= constraints_make_evalob(ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
1967                 solve_constraints (&ob->constraints, cob, G.scene->r.cfra);
1968                 constraints_clear_evalob(cob);
1969         }
1970
1971         /*  WATCH IT!!! */
1972         ob->ipo= ipo;
1973 }
1974
1975 /* for calculation of the inverse parent transform, only used for editor */
1976 void what_does_parent(Object *ob)
1977 {
1978         clear_workob();
1979         Mat4One(workob.obmat);
1980         Mat4One(workob.parentinv);
1981         Mat4One(workob.constinv);
1982         workob.parent= ob->parent;
1983         workob.track= ob->track;
1984
1985         workob.trackflag= ob->trackflag;
1986         workob.upflag= ob->upflag;
1987
1988         workob.partype= ob->partype;
1989         workob.par1= ob->par1;
1990         workob.par2= ob->par2;
1991         workob.par3= ob->par3;
1992
1993         workob.constraints.first = ob->constraints.first;
1994         workob.constraints.last = ob->constraints.last;
1995
1996         strcpy(workob.parsubstr, ob->parsubstr);
1997
1998         where_is_object(&workob);
1999 }
2000
2001 BoundBox *unit_boundbox()
2002 {
2003         BoundBox *bb;
2004         float min[3] = {-1,-1,-1}, max[3] = {-1,-1,-1};
2005
2006         bb= MEM_callocN(sizeof(BoundBox), "bb");
2007         boundbox_set_from_min_max(bb, min, max);
2008
2009         return bb;
2010 }
2011
2012 void boundbox_set_from_min_max(BoundBox *bb, float min[3], float max[3])
2013 {
2014         bb->vec[0][0]=bb->vec[1][0]=bb->vec[2][0]=bb->vec[3][0]= min[0];
2015         bb->vec[4][0]=bb->vec[5][0]=bb->vec[6][0]=bb->vec[7][0]= max[0];
2016
2017         bb->vec[0][1]=bb->vec[1][1]=bb->vec[4][1]=bb->vec[5][1]= min[1];
2018         bb->vec[2][1]=bb->vec[3][1]=bb->vec[6][1]=bb->vec[7][1]= max[1];
2019
2020         bb->vec[0][2]=bb->vec[3][2]=bb->vec[4][2]=bb->vec[7][2]= min[2];
2021         bb->vec[1][2]=bb->vec[2][2]=bb->vec[5][2]=bb->vec[6][2]= max[2];
2022 }
2023
2024 BoundBox *object_get_boundbox(Object *ob)
2025 {
2026         BoundBox *bb= NULL;
2027
2028         if(ob->type==OB_MESH) {
2029                 bb = mesh_get_bb(ob);
2030         }
2031         else if ELEM3(ob->type, OB_CURVE, OB_SURF, OB_FONT) {
2032                 bb= ( (Curve *)ob->data )->bb;
2033         }
2034         else if(ob->type==OB_MBALL) {
2035                 bb= ob->bb;
2036         }
2037         return bb;
2038 }
2039
2040 /* used to temporally disable/enable boundbox */
2041 void object_boundbox_flag(Object *ob, int flag, int set)
2042 {
2043         BoundBox *bb= object_get_boundbox(ob);
2044         if(bb) {
2045                 if(set) bb->flag |= flag;
2046                 else bb->flag &= ~flag;
2047         }
2048 }
2049
2050 void minmax_object(Object *ob, float *min, float *max)
2051 {
2052         BoundBox bb;
2053         Mesh *me;
2054         Curve *cu;
2055         float vec[3];
2056         int a;
2057
2058         switch(ob->type) {
2059
2060         case OB_CURVE:
2061         case OB_FONT:
2062         case OB_SURF:
2063                 cu= ob->data;
2064
2065                 if(cu->bb==NULL) tex_space_curve(cu);
2066                 bb= *(cu->bb);
2067
2068                 for(a=0; a<8; a++) {
2069                         Mat4MulVecfl(ob->obmat, bb.vec[a]);
2070                         DO_MINMAX(bb.vec[a], min, max);
2071                 }
2072                 break;
2073         case OB_ARMATURE:
2074                 if(ob->pose) {
2075                         bPoseChannel *pchan;
2076                         for(pchan= ob->pose->chanbase.first; pchan; pchan= pchan->next) {
2077                                 VECCOPY(vec, pchan->pose_head);
2078                                 Mat4MulVecfl(ob->obmat, vec);
2079                                 DO_MINMAX(vec, min, max);
2080                                 VECCOPY(vec, pchan->pose_tail);
2081                                 Mat4MulVecfl(ob->obmat, vec);
2082                                 DO_MINMAX(vec, min, max);
2083                         }
2084                         break;
2085                 }
2086                 /* no break, get_mesh will give NULL and it passes on to default */
2087         case OB_MESH:
2088                 me= get_mesh(ob);
2089
2090                 if(me) {
2091                         bb = *mesh_get_bb(ob);
2092
2093                         for(a=0; a<8; a++) {
2094                                 Mat4MulVecfl(ob->obmat, bb.vec[a]);
2095                                 DO_MINMAX(bb.vec[a], min, max);
2096                         }
2097                 }
2098                 if(min[0] < max[0] ) break;
2099
2100                 /* else here no break!!!, mesh can be zero sized */
2101
2102         default:
2103                 DO_MINMAX(ob->obmat[3], min, max);
2104
2105                 VECCOPY(vec, ob->obmat[3]);
2106                 VecAddf(vec, vec, ob->size);
2107                 DO_MINMAX(vec, min, max);
2108
2109                 VECCOPY(vec, ob->obmat[3]);
2110                 VecSubf(vec, vec, ob->size);
2111                 DO_MINMAX(vec, min, max);
2112                 break;
2113         }
2114 }
2115
2116 /* TODO - use dupli objects bounding boxes */
2117 void minmax_object_duplis(Object *ob, float *min, float *max)
2118 {
2119         if ((ob->transflag & OB_DUPLI)==0) {
2120                 return;
2121         } else {
2122                 ListBase *lb;
2123                 DupliObject *dob;
2124
2125                 lb= object_duplilist(G.scene, ob);
2126                 for(dob= lb->first; dob; dob= dob->next) {
2127                         if(dob->no_draw);
2128                         else {
2129                                 /* should really use bound box of dup object */
2130                                 DO_MINMAX(dob->mat[3], min, max);
2131                         }
2132                 }
2133                 free_object_duplilist(lb);      /* does restore */
2134         }
2135 }
2136
2137
2138 /* proxy rule: lib_object->proxy_from == the one we borrow from, only set temporal and cleared here */
2139 /*           local_object->proxy      == pointer to library object, saved in files and read */
2140
2141 /* function below is polluted with proxy exceptions, cleanup will follow! */
2142
2143 /* the main object update call, for object matrix, constraints, keys and displist (modifiers) */
2144 /* requires flags to be set! */
2145 void object_handle_update(Object *ob)
2146 {
2147         if(ob->recalc & OB_RECALC) {
2148
2149                 if(ob->recalc & OB_RECALC_OB) {
2150
2151                         // printf("recalcob %s\n", ob->id.name+2);
2152
2153                         /* handle proxy copy for target */
2154                         if(ob->id.lib && ob->proxy_from) {
2155                                 // printf("ob proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2156                                 if(ob->proxy_from->proxy_group) {/* transform proxy into group space */
2157                                         Object *obg= ob->proxy_from->proxy_group;
2158                                         Mat4Invert(obg->imat, obg->obmat);
2159                                         Mat4MulMat4(ob->obmat, ob->proxy_from->obmat, obg->imat);
2160                                 }
2161                                 else
2162                                         Mat4CpyMat4(ob->obmat, ob->proxy_from->obmat);
2163                         }
2164                         else
2165                                 where_is_object(ob);
2166                 }
2167
2168                 if(ob->recalc & OB_RECALC_DATA) {
2169
2170                         // printf("recalcdata %s\n", ob->id.name+2);
2171
2172                         /* includes all keys and modifiers */
2173                         if(ob->type==OB_MESH) {
2174                                 makeDerivedMesh(ob, get_viewedit_datamask());
2175                         }
2176                         else if(ob->type==OB_MBALL) {
2177                                 makeDispListMBall(ob);
2178                         }
2179                         else if(ELEM3(ob->type, OB_CURVE, OB_SURF, OB_FONT)) {
2180                                 makeDispListCurveTypes(ob, 0);
2181                         }
2182                         else if(ob->type==OB_LATTICE) {
2183                                 lattice_calc_modifiers(ob);
2184                         }
2185                         else if(ob->type==OB_ARMATURE) {
2186                                 /* this happens for reading old files and to match library armatures with poses */
2187                                 if(ob->pose==NULL || (ob->pose->flag & POSE_RECALC))
2188                                         armature_rebuild_pose(ob, ob->data);
2189
2190                                 if(ob->id.lib && ob->proxy_from) {
2191                                         copy_pose_result(ob->pose, ob->proxy_from->pose);
2192                                         // printf("pose proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2193                                 }
2194                                 else {
2195                                         do_all_pose_actions(ob);
2196                                         where_is_pose(ob);
2197                                 }
2198                         }
2199
2200                         if(ob->particlesystem.first) {
2201                                 ParticleSystem *tpsys, *psys;
2202                                 DerivedMesh *dm;
2203
2204                                 psys= ob->particlesystem.first;
2205                                 while(psys) {
2206                                         if(psys_check_enabled(ob, psys)) {
2207                                                 particle_system_update(ob, psys);
2208                                                 psys= psys->next;
2209                                         }
2210                                         else if(psys->flag & PSYS_DELETE) {
2211                                                 tpsys=psys->next;
2212                                                 BLI_remlink(&ob->particlesystem, psys);
2213                                                 psys_free(ob,psys);
2214                                                 psys= tpsys;
2215                                         }
2216                                         else
2217                                                 psys= psys->next;
2218                                 }
2219
2220                                 if(G.rendering && ob->transflag & OB_DUPLIPARTS) {
2221                                         /* this is to make sure we get render level duplis in groups:
2222                                          * the derivedmesh must be created before init_render_mesh,
2223                                          * since object_duplilist does dupliparticles before that */
2224                                         dm = mesh_create_derived_render(ob, CD_MASK_BAREMESH|CD_MASK_MTFACE|CD_MASK_MCOL);
2225                                         dm->release(dm);
2226                                 }
2227                         }
2228                 }
2229
2230                 /* the no-group proxy case, we call update */
2231                 if(ob->proxy && ob->proxy_group==NULL) {
2232                         /* set pointer in library proxy target, for copying, but restore it */
2233                         ob->proxy->proxy_from= ob;
2234                         // printf("call update, lib ob %s proxy %s\n", ob->proxy->id.name, ob->id.name);
2235                         object_handle_update(ob->proxy);
2236                 }
2237
2238                 ob->recalc &= ~OB_RECALC;
2239         }
2240
2241         /* the case when this is a group proxy, object_update is called in group.c */
2242         if(ob->proxy) {
2243                 ob->proxy->proxy_from= ob;
2244                 // printf("set proxy pointer for later group stuff %s\n", ob->id.name);
2245         }
2246 }